Stay with the parts brand your vehicle came with and get peace of mind that the fit, form, and function is up to the high standards and specifications of General Motors. GM Genuine Power Antennas automatically extend when you turn on your vehicle or radio, and retract when your vehicle or radio is turned off. A power antenna receives the Over The Air (OTA) radio station signals for your vehicle's radio receiver. Damaged or corroded antennas can impair radio station reception.
